Carton and liner for the same



June 25, 1935. H. LESLIE CARTON AND LINER FOR THE SAME Filed Feb. 27,1955 /9//5 A TTORNEY Patented June 25, 1935 cAn'roN AND vLINER Fon. THESAME I Harold Leslie, San Francisco, Calif., `assigner to FibreboardProducts Inc., San Francisco, Calif., a corporation of DelawareApplication February 27, I1933, serial No. 658,760

6 ,A ,My invention relates to packing devices, and particularly tobreboard cartons and means for reinforcing them.

One of the objects of my invention is the pro- 5 vision of a cartonhaving reinforcing columns so that large numbers of lled cartons may bev stacked Without collapsing the lower ones.

Another object of the invention is the provision of means to reinforcethe side walls of the carton, and to resist deterioration of the cartonby the action of moisture from materials packed therein.

My invention possesses other objects and features ofadvantage, some ofwhich, with the foregoing, will be set forth in the followingdescription of .my invention. It is to be understood that I do not limitmyself to this disclosure of species of my invention, as I may adoptvariant embodiments thereof within the scope of the claims.

Referring to the drawing: 'v

Figure l is a perspective view showing several cartons embodying myinvention stacked together; a portion of the top carton is broken awayto show the construction.

Figure 2 is a top elevation of the carton, a. por-g tion being brokenaway to show the details of construction. l

Figure 3 is a plan view of a fragment of the liner showing thearrangement of the creases forming the cornerr construction.

Broadly, my invention comprises a carton having side and end walls, andflaps on the Walls to provide a top and bottom for the carton.l Dis'posed within the carton; and seating snugly against its inner walls is aliner having wall por- 35 tions to protect and strengthen the cartonWalls, and other portions adjacent each corner folded out of the planesof the liner walls to provide a vertical beam and supporting column toreinforce the corners of the carton against transverse and 40compressive stresses.

In greater detail my invention comprises a' cartom-made preferably ofbreboard /or corrugated board, having side walls 2, and end Walls 3, onboth of which the bottom flaps 4, and the top flaps 6, are disposed. Thecommon carton thus far described has many uses, but it cannot be used asa container for moisture bearing products such as dried fruits. Forexample, dried prunes are subjected to a steam and dipping treatmentimmediately before being packed, and the hot moist fruit is packeddirectly in the ccntainer which is promptly closed. Wooden boxes havebeen universally used for -handling suchl products, until recently whenefforts have been made to utilize'breboard cartons, but with littlesuccessi The moisture causes the breboard to vwilt; and in a. short timethe carton collapses. Even if it does not actually break down, it willbeso weakened that it is impossible to stack one full carton uponanother. 1

To overcome' these objectionable features, I provide a liner formed froma sheet or strip of heavy breboard, having a width substantially equalto the depth of the carton. Arranged ne'ar one end of the liner strip isa group of spaced transverse creases-1, 8,*9 and I0, which divide, Vthatportion of the strip in to four panels,A i2, I3, I4 and I5. The secondand last panels I3 and I5 are Apreferably of the same width and thepanel I2 at the end of the strip is preferably equal to o r greater inwidth than the panel I3, and constitutes a short wall section of theliner, separated by the three panels I3. I4 and I5 from the longerwall'section Il. The outside creases 'I and I0 are deeply scored tofacilitate foldinginwardly, so that when the liner` is folded, thepanels ,I3 and I5 are doubled back against theinner side of the adjacentwall'sections I2 and Il.

4The creases 8 and 9 are scored to facilitate folding in the oppositedirection from the folding on the creases 1 and I0; and because it isimportant to avoid cutting or breaking the stock at this point, thecreases 8 and 9 are preferably of the embossed wide type which, whenfolded, form a double or T-shaped bead I8.

When the edges 2| and 22 formed by folding the liner on the creases 'Iand IIl respectively are brought into abutting position in the corner ofthe carton, they form the vertex edge of a right angle triangularprismatic column which ilts snugly into the corner with theperpendicular Isides I3 and I5 of the column lying against the adjacentwall sections'of the liner. '.Ihus, a vertical beam and column isprovided which reinforces the carton against both compressive andtransverse stresses.

Similar groups of transverse creases are spaced along the strip atintervals to coincide lwith the corners of the carton. In this way thestrip is divided into one short section I 2` and four longer Wallsections Il, the longer sections being of substantially the same size asthe carton wall which .they overlie, and intol four groups of panels I3,I d and I5A which form the reinforcing column at each corner andseparate the main wall sections. When in position in the' carton thecolumns are rigidly held in position by the liner side walls and by thecontents of the carton when If the liner is designed for a small cartona single strip may be creased and folded to form the line'r. In thiscase the end of the strip having no creases is inserted between thenarrow y wall section I2 at the other end of the strip and the panel I3forming one side of the column. The parts are thus interlocked and heldsecurely in position in the carton. If on the other handthe carton islarge it will be found expedient to utilize two like strips tomake upthe liner. Each portion comprises two main wall sections, two cornercolumns, and one short wall section adjacent one end of the strip. Thetwo portions are interlocked in the same manner as described a carton isdropped or subjected to a blow along one of the corner edges thereinforcing column acts as a vertical beam preventing localization ofthe blow so that it is distributed and absorbed without injury.

I have also found it desirable to line the top and bottom of the cartonand for this purpose a sheet of brous material similar to that used forthe liner wall sections may be used. The fruit packed in the containerof my invention contacts only with the liner walls which absorb themoisture from the fruit and so prevent deterioration of the cartonstock.

I claim: K

1. A liner for a carton comprising a strip of Afibrous material having aplurality of transverse creases, and folded to form wall sections andreinforcing columns having a uniform right angled triangular crosssection, the perpendicular sides of the column lying snugly in thecorners of thecarton. v

2. A liner for a carton comprising `a strip of fibrous material having aplurality of transverse creases, and folded to form wall sections andreinforcing columns having a uniform right angled triangular crosssection, the perpendicular sides of the column lying in the corners ofthe carton and bearing against the adjacent wall sections.

3. A liner for a carton comprising a strip of brous material having aplurality of groups of transverse creases, and folded to formreinforcing columns at each corner, intervening wall sections, and ashort wall sectionat one end of the strip between which and theadjoining wall of the column the opposite end of the strip seats tointerlock the parts.

4. A liner for a carton comprising a strip of brous material having aplurality of groups of 'transverse creases, and folded to formreinforcing columns at each corner and intervening wall seci tions,coextensive with the walls of the carton so that an end of a wallsection 'seats between a column and the carton wall to interlock theparts. 5. A liner for a carton comprising a strip divided into a wallsection and reinforcing/panels by parallel transverse creases, andfolded about said creases to form the panels into a triangular prismaticcolumn at the corner of the carton, with a substantially 180 degree foldabout one crease line to position one panel'flatly against the wallsection.

6. A liner for a carton comprising a strip divided into a pair of wallsections and intermediately positioned reinforcing panels by paralleltransverse creases, and folded about said creases to form the panelsinto a triangular prismatic column at the corner of the carton, withsubstantially 180 degree folds about two ofv the crease lines toposition a pair of the panels 40 iiatly against the wall sections.

HAROLD LESLI.

